Septic tank device

Abstract

The utility model provides a septic tank device and belongs to the technical field of sewage treatment equipment. The septic tank device comprises a tank body, the tank body is provided with an inner cavity, a gas guide baffle is arranged in the inner cavity, a pretreatment area is arranged on one side of the gas guide baffle, a clarification area is arranged on the other side of the gas guide baffle, the pretreatment area sequentially comprises a sedimentation area and an anaerobic digestion area from top to bottom, and elastic biological filler is arranged in the anaerobic digestion area. A discharge port is formed between the bottom of the gas guide baffle and the cavity wall of the inner cavity of the tank body, and a water inlet system communicated with the pretreatment area and an outflow system communicated with the clarification area are further arranged on the tank body. According to the septic tank device, the inner cavity of the tank body is divided into the sedimentation area, the anaerobic digestion area and the clarification area, and the elastic biological filler is additionally arranged in the anaerobic digestion area, so that sewage sedimentation, anaerobic digestion and mud-water separation are well enhanced, the quality of sewage is improved after treatment, and a better treatment effect is brought.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment equipment and relates to a septic tank device. Background Art

[0002] A septic tank is a simple sewage treatment device widely used for wastewater collection and treatment, particularly in decentralized sewage treatment systems. It is typically buried underground. Its basic principle is that, under the combined effects of gravity and buoyancy, stationary sewage stratifies, settles, and separates, gradually forming a scum layer, a liquid layer, and a sediment layer based on their different specific gravities. The scum and sediment layers are then removed through salvage and suction, while the liquid layer is transported through sewage pipes to a sewage treatment plant for treatment.

[0003] The septic tanks in the prior art have problems such as weak pretreatment function and poor treatment effect. Summary of the Invention

[0004] The present invention aims to solve the above-mentioned problems in the prior art and provides a septic tank device. The technical problem to be solved by the present invention is: how to improve the treatment effect.

[0005] The purpose of this utility model can be achieved through the following technical solutions:

[0006] A septic tank device includes a tank body, which has an inner cavity and is characterized in that an air guide baffle is provided in the inner cavity, one side of the air guide baffle is a pretreatment area, and the other side of the air guide baffle is a clarification area, the pretreatment area is composed of a sedimentation area and an anaerobic digestion area from top to bottom, and elastic biological filler is provided in the anaerobic digestion area. A discharge port is provided between the bottom of the air guide baffle and the cavity wall of the inner cavity of the tank body, and the tank body is also provided with an inlet system connected to the pretreatment area and an outflow system connected to the clarification area.

[0007] Its working principle is: the air guide baffle of the septic tank device divides the inner cavity of the tank body into a pretreatment area and a clarification area, wherein the upper part of the pretreatment area is the sedimentation area, and the lower part is the anaerobic digestion area. The elastic biological filler is installed in the anaerobic digestion area. The sewage enters the pretreatment area from the water inlet system, completes sedimentation in the sedimentation area, and completes anaerobic digestion in the anaerobic digestion area. The sewage treated by sedimentation and anaerobic digestion enters the clarification area through the discharge port at the bottom of the air guide baffle. Sedimentation and mud-water separation are achieved by gravity under a stable flow state. The clarified sewage is discharged from the tank body by the outflow system, and the settled sludge returns to the anaerobic digestion area through the discharge port.

[0008] Through structural design, the inner cavity of the septic tank device is divided into three parts: sedimentation zone, anaerobic digestion zone and clarification zone. Elastic biological fillers are installed in the anaerobic digestion zone to effectively enhance sewage sedimentation, anaerobic digestion and mud-water separation, while killing pathogens such as intestinal parasite eggs and controlling the breeding of mosquitoes and flies. The sludge produced by precipitation is partially decomposed, which improves the water quality of sewage after treatment, reduces the cleaning and maintenance workload of the device, lays the foundation for subsequent biochemical treatment, and brings better treatment effects.

[0009] In the above-mentioned septic tank device, the air guide baffle is arranged at an angle, and the air guide baffle gradually extends from top to bottom toward the cavity wall close to the inner cavity of the tank body.

[0010] In the above-mentioned septic tank device, an air duct connected to the anaerobic digestion zone is provided on the tank body, the outer end of the air duct extends outward, the outer end of the air duct is bent downward, and an air-cleaning filler is provided inside the outer end of the air duct.

[0011] The gas generated in the anaerobic digestion area is guided by the air guide baffle and enters the air guide pipe. The air guide pipe is installed with clean gas filler. The gas is adsorbed and purified by the clean gas filler and then discharged from the tank body. The methane, carbon dioxide, hydrogen sulfide and other gases generated during the anaerobic digestion of sewage are effectively collected and treated, which not only avoids the disorderly emission of greenhouse gases, but also reduces greenhouse gas emissions and avoids environmental pollution.

[0012] In the above-mentioned septic tank device, the air-purifying filler is activated carbon.

[0013] In the above-mentioned septic tank device, a maintenance manhole is provided on the top of the tank body, and the maintenance manhole is opposite to the sedimentation area.

[0014] A maintenance manhole is set at the top of the sedimentation area to facilitate maintenance of the pool body.

[0015] In the above-mentioned septic tank device, the water inlet system includes a main pipe body and a branch pipe body that are connected to each other. The outer end of the main pipe body extends from the tank body, the inner end of the main pipe body is located in the pretreatment area, and the outer end of the branch pipe body extends outside the tank body.

[0016] Sewage enters main body 1 from branch pipe 1 and then enters the pretreatment area from the inner end of main body 1. The opening at the outer end of main body 1 is an inspection port, which is convenient for observing the water inflow and clearing and maintaining the water inflow system.

[0017] In the above-mentioned septic tank device, the outflow system includes a main pipe body 2 and a branch pipe body 2 that are connected to each other, the outer end of the main pipe body 2 extends from the tank body, the inner end of the main pipe body 2 is located in the clarification area, and the outer end of the branch pipe body 2 extends outside the tank body.

[0018] The clarified sewage enters the main body 2 from the inner end of the main body 2, and then is discharged from the pool body through the branch pipe 2. The opening at the outer end of the main body 2 is an inspection port for easy maintenance.

[0019] In the above-mentioned septic tank device, an outflow filter is installed in the inner end of the second main pipe body.

[0020] The outflow filter is used to filter the sewage to be discharged so that the sewage can be further purified.

[0021] Compared with the prior art, the advantages of the present invention are as follows:

[0022] 1. The septic tank device divides the inner cavity of the tank into three parts through structural design: sedimentation zone, anaerobic digestion zone and clarification zone. Elastic biological fillers are installed in the anaerobic digestion zone to greatly enhance sewage sedimentation, anaerobic digestion and mud-water separation, while killing pathogens such as intestinal parasite eggs and controlling the breeding of mosquitoes and flies. The sludge produced by precipitation is partially decomposed, which improves the water quality of sewage after treatment, reduces the cleaning and maintenance of the device, lays the foundation for subsequent biochemical treatment, and brings better treatment effects.

[0023] 2. The septic tank device sends the gas generated during the anaerobic digestion process to the air duct, which is adsorbed by the activated carbon filler installed in the air duct and then discharged. This allows the methane, carbon dioxide, hydrogen sulfide and other gases generated by the anaerobic digestion of sewage to be effectively collected and treated, thereby reducing greenhouse gas emissions while avoiding disorderly emissions of greenhouse gases. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of a septic tank installation;

[0025] Figure 2 It is a structural diagram of elastic biofiller.

[0026] In the figure: 1 tank body, 2 inner cavity, 3 air guide baffle, 4 pretreatment area, 5 clarification area, 6 sedimentation area, 7 anaerobic digestion area, 8 elastic biological filler, 9 discharge port, 10 water inlet system, 11 outflow system, 12 air guide pipe, 13 clean air filler, 14 inspection manhole, 15 main body 1, 16 branch pipe 1, 17 main body 2, 18 branch pipe 2, 19 outflow filter. DETAILED DESCRIPTION

[0027] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0028] like Figure 1-2As shown, the septic tank device includes a tank body 1, the tank body 1 has an inner cavity 2, an air guide baffle 3 is arranged in the inner cavity 2, one side of the air guide baffle 3 is a pretreatment area 4, and the other side of the air guide baffle 3 is a clarification area 5. The pretreatment area 4 is composed of a sedimentation area 6 and an anaerobic digestion area 7 from top to bottom, and an elastic biological filler 8 is arranged in the anaerobic digestion area 7. A discharge port 9 is provided between the bottom of the air guide baffle 3 and the cavity wall of the inner cavity 2 of the tank body 1. The tank body 1 is also provided with an inlet system 10 connected to the pretreatment area 4 and an outflow system 11 connected to the clarification area 5.

[0029] The air guide baffle 3 of the septic tank device separates the inner cavity 2 of the tank body 1 into a pretreatment area 4 and a clarification area 5, wherein the upper half of the pretreatment area 4 is a sedimentation area 6, and the lower half is an anaerobic digestion area 7. The elastic biological filler 8 is installed in the anaerobic digestion area 7. The sewage enters the pretreatment area 4 from the water inlet system 10, completes sedimentation in the sedimentation area 6, and completes anaerobic digestion in the anaerobic digestion area 7. The sewage after sedimentation and anaerobic digestion enters the clarification area 5 through the discharge port 9 at the lower part of the air guide baffle 3. Sedimentation and mud-water separation are achieved by gravity under a stable flow state. The clarified sewage is discharged from the tank body 1 by the outflow system 11, and the settled sludge returns to the anaerobic digestion area 7 through the discharge port 9.

[0030] like Figure 1 As shown, in this embodiment, the air guide baffle 3 is arranged obliquely, and the air guide baffle 3 gradually extends from top to bottom toward the cavity wall of the inner cavity 2 close to the pool body 1.

[0031] like Figure 1 As shown, in this embodiment, an air duct 12 connected to the anaerobic digestion zone 7 is provided on the tank body 1, the outer end of the air duct 12 extends outward, the outer end of the air duct 12 is bent downward, and an air-cleaning filler 13 is provided in the outer end of the air duct 12.

[0032] The gas generated in the anaerobic digestion zone 7 is directed by the air guide baffle 3 and enters the air guide pipe 12. A gas-cleaning filler 13 is installed in the air guide pipe 12. The gas is adsorbed and purified by the gas-cleaning filler 13 before being discharged from the tank body 1. This effectively collects and treats gases such as methane, carbon dioxide, and hydrogen sulfide generated during the anaerobic digestion of wastewater, preventing disorderly greenhouse gas emissions and thus reducing environmental pollution. In one embodiment, the gas-cleaning filler 13 is activated carbon.

[0033] like Figure 1 As shown, in this embodiment, a maintenance manhole 14 is provided on the top of the tank body 1, and the maintenance manhole 14 is opposite to the sedimentation area 6. The maintenance manhole 14 is provided on the upper part of the sedimentation area 6 to facilitate maintenance of the tank body 1.

[0034] like Figure 1As shown, in this embodiment, the water inlet system 10 includes a main pipe body 15 and a branch pipe body 16 that are connected to each other. The outer end of the main pipe body 15 extends from the tank body 1, the inner end of the main pipe body 15 is located in the pretreatment area 4, and the outer end of the branch pipe body 16 extends outside the tank body 1.

[0035] Sewage enters the main body 15 from the branch pipe 1, and then enters the pretreatment area 4 from the inner end of the main body 15. The opening at the outer end of the main body 15 is an inspection port, which is convenient for observing the water inflow and clearing and maintaining the water inflow system 10.

[0036] like Figure 1 As shown, in this embodiment, the outflow system 11 includes a main pipe body 17 and a branch pipe body 18 that are connected to each other. The outer end of the main pipe body 17 extends from the pool body 1, the inner end of the main pipe body 17 is located in the clarification area 5, and the outer end of the branch pipe body 18 extends outside the pool body 1.

[0037] The clarified sewage enters the second main body 17 from the inner end of the second main body 17 and then is discharged from the tank body 1 through the second branch pipe. The opening at the outer end of the second main body 17 is an inspection port for easy maintenance.

[0038] like Figure 1 As shown, in this embodiment, an outflow filter 19 is installed in the inner end of the second main pipe body 17.

[0039] The outflow filter 19 is used to filter the sewage to be discharged so as to further purify the sewage.

[0040] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A septic tank device, comprising a tank body (1), wherein the tank body (1) has an inner cavity (2), characterized in that: An air guide baffle (3) is provided in the inner cavity (2), one side of the air guide baffle (3) is a pretreatment zone (4), and the other side of the air guide baffle (3) is a clarification zone (5). The pretreatment zone (4) is composed of a sedimentation zone (6) and an anaerobic digestion zone (7) from top to bottom. An elastic biological filler (8) is provided in the anaerobic digestion zone (7). A discharge port (9) is provided between the bottom of the air guide baffle (3) and the cavity wall of the inner cavity (2) of the tank body (1). The tank body (1) is also provided with a water inlet system (10) connected to the pretreatment zone (4) and an outflow system (11) connected to the clarification zone (5).

2. A septic tank device according to claim 1, characterized in that: The air guide baffle (3) is arranged at an angle, and the air guide baffle (3) gradually extends from top to bottom toward the cavity wall of the inner cavity (2) close to the pool body (1).

3. A septic tank device according to claim 1, characterized in that: An air guide pipe (12) communicating with the anaerobic digestion zone (7) is provided on the tank body (1), the outer end of the air guide pipe (12) extending outward, the outer end of the air guide pipe (12) bending downward, and a clean air filler (13) is provided inside the outer end of the air guide pipe (12).

4. A septic tank device according to claim 3, characterized in that: The air-cleaning filler (13) is activated carbon.

5. A septic tank device according to claim 1, 2, 3 or 4, characterized in that: A maintenance manhole (14) is provided on the top of the tank body (1), and the maintenance manhole (14) is opposite to the sedimentation area (6).

6. A septic tank device according to claim 1, 2, 3 or 4, characterized in that: The water inlet system (10) comprises a main pipe body (15) and a branch pipe body (16) that are connected to each other. The outer end of the main pipe body (15) extends from the tank body (1), the inner end of the main pipe body (15) is located in the pretreatment area (4), and the outer end of the branch pipe body (16) extends outside the tank body (1).

7. A septic tank device according to claim 1, 2, 3 or 4, characterized in that: The outflow system (11) comprises a main pipe body 2 (17) and a branch pipe body 2 (18) which are connected to each other. The outer end of the main pipe body 2 (17) extends from the pool body (1), the inner end of the main pipe body 2 (17) is located in the clarification zone (5), and the outer end of the branch pipe body 2 (18) extends outside the pool body (1).

8. A septic tank device according to claim 7, characterized in that: An outflow filter (19) is installed in the inner end of the second main pipe (17).

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